Jacobs G J, Calvert C A, Hall D G, Kraus M
Department of Small Animal Medicine, College of Veterinary Medicine, University of Georgia, Athens 30602, USA.
J Small Anim Pract. 1996 Aug;37(8):387-90. doi: 10.1111/j.1748-5827.1996.tb02422.x.
A five-year-old boxer dog developed cardiac murmurs, complete heart block and cardiomegaly associated with vegetative bacterial endocarditis. Using two-dimensional echocardiography, vegetative lesions of the aortic valves and extension of the vegetations into the proximal right coronary artery and adjacent atrial septum were identified. The vegetation within the atrial septum appeared as a cavitated mass which protruded into the right atrium. Fistulae within the atrial septal vegetation permitting communication between the coronary artery and right atrium were observed with colour Doppler echocardiography. The dog died despite medical treatment. Post mortem examination confirmed the echocardiographic findings. Vegetative endocarditis with invasion into the right coronary artery and atrial septum producing fistulae and communication with the right atrium has not been reported previously in dogs. Doppler echocardiography proved useful in demonstrating the abnormal anatomy, intraluminal fistular blood flow and its communication with the right atrium.
一只五岁的拳师犬出现心脏杂音、完全性心脏传导阻滞和心脏肥大，伴有细菌性心内膜炎赘生物。使用二维超声心动图，发现主动脉瓣赘生物病变以及赘生物延伸至右冠状动脉近端和相邻房间隔。房间隔内的赘生物表现为向右心房突出的空洞性肿块。彩色多普勒超声心动图观察到房间隔赘生物内的瘘管，允许冠状动脉与右心房相通。尽管进行了药物治疗，这只狗还是死了。尸检证实了超声心动图的发现。此前尚未有犬类发生赘生性心内膜炎侵犯右冠状动脉和房间隔并产生瘘管与右心房相通的报道。多普勒超声心动图被证明有助于显示异常解剖结构、管腔内瘘管血流及其与右心房的相通情况。
